College of Geo- exploration Science and Technology��Jilin University��Changchun 130026��China

Aiming at the problems such as skin effect of imaging and divergence of anomalous source for focu- sing inversion in the practical application��the authors designed sensitivity matrix with double weighted coefficients including depth-and data weights in order to deal kernel function�� By fitting inversion theoretical forward model ex- periments��it is proved that the method is of reliability�� The double weighting factors were applied to the practical data of a mine in Shandong��in which the inversion results clearly reflect the boundaries and depth of underground anomalies�� Compared with the results of the cross- section resistivity��the both are close in abnormal positions�� The method can reflect the actual anomalies��